{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-128049",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-11-12T20:45:47.417Z",
        "datePublished": "2026-11-13T09:33:52.073Z",
        "dateUpdated": "2026-11-13T09:33:52.073Z"
    },
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                "dateUpdated": "2026-11-13T09:33:52.073Z"
            },
            "datePublic": "2026-10-26T00:00:00.000Z",
            "title": "OpenMage Magento LTS before 20.18.2 CSRF via OAuth Authorization Confirm",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "OpenMage Magento LTS before 20.18.2 and 21.0.0-beta1 before 21.0.0-beta3 contains a cross-site request forgery vulnerability in the admin and storefront OAuth confirm and confirmSimple actions, which accept GET requests without form-key validation. Attackers holding OAuth consumer credentials can lure a logged-in administrator or customer to a crafted confirm URL that authorizes the attacker's request token, then exchange it at /oauth/token for a persistent REST API access token bound to the victim."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Cross-Site Request Forgery (CSRF)",
                            "cweId": "CWE-352",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "OpenMage",
                    "product": "magento-lts",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "20.18.2"
                        },
                        {
                            "version": "20.18.2",
                            "status": "unaffected",
                            "versionType": "semver"
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                },
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                            "version": "21.0.0-beta1",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "21.0.0-beta3"
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                        {
                            "version": "21.0.0-beta3",
                            "status": "unaffected",
                            "versionType": "semver"
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                        "version": "4.0",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "HIGH",
                        "subIntegrityImpact": "HIGH",
                        "subAvailabilityImpact": "HIGH",
                        "baseScore": 9.4,
                        "baseSeverity": "CRITICAL"
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                        "attackVector": "NETWORK",
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                        "privilegesRequired": "LOW",
                        "userInteraction": "REQUIRED",
                        "scope": "CHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "HIGH",
                        "baseScore": 9,
                        "baseSeverity": "CRITICAL"
                    }
                }
            ],
            "references": [
                {
                    "url": "https://github.com/OpenMage/magento-lts/security/advisories/GHSA-grrq-9gq2-vm55",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "name": "GitHub Security Advisory (GHSA-grrq-9gq2-vm55)"
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                {
                    "url": "https://github.com/OpenMage/magento-lts/commit/1f83e49b60e08aa7ba89dcc2d41ea21f62c0b796",
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                    "name": "Patch Commit"
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                {
                    "name": "VulnCheck Advisory: OpenMage Magento LTS before 20.18.2 CSRF via OAuth Authorization Confirm",
                    "tags": [
                        "third-party-advisory"
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                    "url": "https://www.vulncheck.com/advisories/openmage-magento-lts-before-20.18.2-csrf-via-oauth-authorization-confirm"
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                    "value": "C-Brown",
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}